package com.neusoft.elm.dao.impl;

import com.neusoft.elm.dao.UserDao;
import com.neusoft.elm.po.User;
import com.neusoft.elm.util.DBUtil;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class UserDaoImpl implements UserDao {
    private Connection conn=null;
    private PreparedStatement prep=null;
    private ResultSet rs=null;
    @Override
    public int saveUser(User user) throws Exception {
        try {
            conn= DBUtil.getConnection();
            String sql="insert into user values(?,?,?,?,?,1)";
            prep=conn.prepareStatement(sql);

            prep.setString(1,user.getUserId());
            prep.setString(2,user.getPassword());
            prep.setString(3,user.getUserName());
            prep.setInt(4,user.getUserSex());
            prep.setString(5,user.getUserImg());
            int n=prep.executeUpdate();
            return n;
        } catch (SQLException throwables) {
            throwables.printStackTrace();
            throw throwables;
        } finally {
            DBUtil.close(prep);
        }
    }

    @Override
    public User getUserByIdByPass(String userId, String password) throws Exception {
        try {
            conn= DBUtil.getConnection();
            String sql="select * from user where userId=? and password=?";
            prep=conn.prepareStatement(sql);
            prep.setString(1,userId);
            prep.setString(2,password);
            rs=prep.executeQuery();
            User user=null;
            if(rs.next()){
                user=new User();
                user.setUserId(rs.getString("userId"));
                user.setPassword(rs.getString("passWord"));
                user.setUserName(rs.getString("userName"));
                user.setUserSex(rs.getInt("userSex"));
                user.setUserImg(rs.getString("userImg"));
                user.setDelTag(rs.getInt("delTag"));
            }
            return user;
        } catch (SQLException throwables) {
            throwables.printStackTrace();
            throw throwables;
        } finally {
            DBUtil.close(rs,prep);
        }
    }

    @Override
    public User getUserById(String userId) throws Exception {
        try {
            conn= DBUtil.getConnection();
            String sql="select * from user where userId=?";
            //设置参数
            prep=conn.prepareStatement(sql);
            prep.setString(1,userId);
            rs=prep.executeQuery();
            User user=null;
            if(rs.next()){
                user=new User();
                user.setUserId(rs.getString("userId"));
                user.setPassword(rs.getString("passWord"));
                user.setUserName(rs.getString("userName"));
                user.setUserSex(rs.getInt("userSex"));
                user.setUserImg(rs.getString("userImg"));
                user.setDelTag(rs.getInt("delTag"));
            }
            return user;
        } catch (SQLException throwables) {
            throwables.printStackTrace();
            throw throwables;
        } finally {
            DBUtil.close(rs,prep);
        }


    }
}
